I was playing Batman: Arkham Asylum and during my travels, I found this item set locked away behind an unpassable vent bar.
It's a single cell, not available to get, just out of reach.
What is this supposed to reference, or is it just random?
Here's a zoomed version I took using my Bat Zoom:
I think that engraving is of Arkham Asylum itself? Who does this belong to?
Found it while playing the game on my PC. It's location on the map is: